The Impact of Light Bulbs on Society - The Classroom
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Electrical salesman Dave Ehret of Sydney poses with an old-style incandescent light bulb (R) and a new energy-saving compact florescent bulb (L) at a warehouse in Sydney February 27, 2007. Under an
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x2 for NEW WORLD 25W E14 300deg Oven Cooker Heat Resistant Light Bulbs High Temp 8711500038715 | eBay
x2 for NEW WORLD 25W E14 300deg Oven Cooker Heat Resistant Light Bulbs High Temp 8711500038715 | eBay
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Incandescent light bulb - Wikipedia
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LED lamp - Wikipedia
